<template>
    <div>
        <!-- 面包屑导航区域 -->
       <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片试图区域 -->
        <el-card class="box-card">
            <!-- 搜索与添加区域 -->
            
            <el-row :gutter="20">
                <el-col :span="7">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table  border
                stripe
                :data="userList"
                style="width: 100%">
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                       <el-switch
                            v-model="scope.row.mg_state"
                            @change="userStateChanged(scope.row)"
                            active-color="#13ce66"
                            inactive-color="#ff4949">
                            </el-switch>                     
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <!-- {{scope.row.id}} -->
                        <el-button type="primary" icon="el-icon-edit"  size="mini"
                                   @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini"
                                  @click="removeUserById(scope.row.id)"></el-button>
                        <el-tooltip effect="dark" content="分配角色" placement="top">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                        
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 4]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                >
            </el-pagination>
        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed">
            <!-- 内容主题区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部按钮区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="dialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
                title="修改用户"
                :visible.sync="editDialogVisible"
                width="50%"
                @close="editDialogClosed">
                <!-- 内容主题区域 -->
                <el-form ref="editFormRef" :model="editForm" label-width="100px" :rules="editFormRules">
                    <el-form-item label="用户名">
                        <el-input v-model="editForm.username" disabled></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email">
                        <el-input v-model="editForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机" prop="mobile">
                        <el-input v-model="editForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部按钮区域 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
        </el-dialog>
        <!-- 分配角色的对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClosed">
            <div>
                <p>当前的用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
    export default {
        data(){
            // 验证邮箱的规则
                var checkEmail=(rule,value,cb)=>{
                    // 验证邮箱的正则表达式
                    const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
                    if(regEmail.test(value)){
                        // 合法的邮箱
                        return cb
                    }
                    cb(new Error('请输入合法的邮箱'))
                }
                // 验证手机号的规则
                var checkMobile=(rule,value,cb)=>{
                    // 验证手机号的正则表达式
                    const regMobile=/^(0|86|17951)?(13[0-9]|15[01234565789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
                    if(regMobile.test(value)){
                        // 合法的手机号
                        return cb
                    }
                    cb(new Error('请输入合法的手机号'))
                }
            return{
                queryInfo:{
                    // 获取用户列表的参数对象
                    query:'',
                    // 当前的页数
                    pagenum:1,
                    // 当前每页显示多少条数据
                    pagesize:2
                },
                userList:[],
                total:0,
                // 控制添加用户对话框的显示与隐藏
                addDialogVisible:false,
                // 添加用户的表单数据
                addForm:{
                    username:'',
                    password:'',
                    email:'',
                    mobile:'',
                },
                
                // 表单验证规则
                addFormRules: {
                    username: [
                        { required: true, message: '请输入用户名', trigger: 'blur' },
                        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                    password: [
                        { required: true, message: '请输入用户密码', trigger: 'blur' },
                        { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                    ],
                    email: [
                        { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                        { validator:checkEmail,trigger: 'blur'}
                    ],
                   mobile: [
                        { required: true, message: '请输入手机号', trigger: 'blur' },
                        { validator:checkMobile, trigger: 'blur'}
                    ],
                    
                },
                // 编辑用户对话框的显示与隐藏
                editDialogVisible:false,
                // 查询到的用户信息对象
                editForm:{},
                // 修改表单的验证规则对象
                editFormRules:{
                    email: [
                        { required: true, message: '请输入用户邮箱', trigger: 'blur' },
                        { validator:checkEmail,trigger: 'blur'}
                    ],
                   mobile: [
                        { required: true, message: '请输入手机号', trigger: 'blur' },
                        { validator:checkMobile, trigger: 'blur'}
                    ],
                },
                // 控制分配角色对话框的显示与隐藏
                setRoleDialogVisible:false,

                //需要被分配角色的用户信息
                userInfo:{},
                // 所有角色的列表数据
                rolesList:[],
                // 已经选中的角色id值
                selectedRoleId:''
                

            }
        },
        created(){
            this.getUserList()
        },
        methods:{
            async getUserList(){
                const {data:res}=await this.$http.get('users',{params:this.queryInfo})
                if(res.meta.status!==200) return this.$message.error('用户获取失败');
                this.userList=res.data.users
                this.total=res.data.total
            },
            // 监听pagesize改变的事件
            handleSizeChange(newSize) {
                console.log(newSize);
                this.queryInfo.pagesize=newSize,
                this.getUserList()
            },
            // 监听页码值改变的事件
            handleCurrentChange(newPage){
                console.log(newPage);
                this.queryInfo.pagenum=newPage
                this.getUserList()
            },
            // 监听状态的改变
            async userStateChanged(userInfo){
                // console.log(userInfo.mg_state);
                const {data:res}=await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
                if(res.meta.status!==200){
                    userInfo.mg_state=!userInfo.mg_state
                    return this.$message.error('更新用户状态失败')
                }
                return this.$message.success('更新用户状态成功')
            },
            // 监听添加用户的关闭时间
            addDialogClosed(){
                this.$refs.addFormRef.resetFields()
            },
            // 点击按钮，添加新用户
            addUser(){
                // console.log('点击了这个按钮');
                this.$refs.addFormRef.validate(async valid=>{
                    console.log(valid);
                    if(!valid) return;
                    const{data:res}=await this.$http.post("users",this.addForm);
                    if(res.meta.status!==201){
                        this.$message.error('添加用户失败')
                    }
                    this.$message.success('添加用户成功');
                    this.addDialogVisible=false;
                    this.getUserList();
                })
            },
            // 展示编辑用户的对话框
            async showEditDialog(id){
                const {data:res}=await this.$http.get('users/'+id)
                if(res.meta.status!==200){
                    return this.$message.error('查询失败')
                }
                this.$message.success('查询成功')
                this.editForm=res.data
                this.editDialogVisible=true

                // console.log(id);

            },
            // 监听修改用户对话框的关闭事件
            editDialogClosed(){
                this.$refs.editFormRef.resetFields()
            },
            editUserInfo(){
                this.$refs.editFormRef.validate(async valid=>{
                    if(!valid) return
                    // 发起修改用户信息的数据请求
                    const {data:res}=await this.$http.put('users/'+this.editForm.id,
                    {email:this.editForm.email,
                    mobile:this.editForm.mobile})
                    if(res.meta.status!==200){
                        this.$message.error('更新用户信息失败')
                    }
                    this.editDialogVisible=false;
                    this.getUserList();
                    this.$message.success('更新用户信息成功')
                })
            },
            // 根据id删除用户信息
            async removeUserById(id){
                console.log(id);
                const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err=>{
                    return err
                })
                // 如果用户确认删除，则返回字符串confirm
                // 如果用户取消了删除，则返回字符串cancel

                // console.log(confirmResult);   
                if(confirmResult!=='confirm'){
                    return this.$message.info('已经取消了删除')
                }
                const {data:res}=await this.$http.delete('users/'+id)
                if(res.meta.status!==200){
                    return this.$message.error('删除用户失败')
                }
                this.$message.success('删除用户成功')
            },
            // 展示分配角色的对话框
            async setRole(userInfo){
                this.userInfo=userInfo
                // 在展示所有对话框之前，获取所有的角色列表
                const{data:res}=await this.$http.get('roles')
                if(res.meta.status!==200){
                    return this.$message.error('获取角色列表失败')
                }
                this.rolesList=res.data
                this.setRoleDialogVisible=true
            },
            // 点击按钮，分配角色
            async saveRoleInfo(){
                if(!this.selectedRoleId){
                    return this.$message.error('请选择要分配权限的角色')
                }
                // 进行分配角色
                const {data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
                if(res.meta.status!==200){
                    return this.$message.error('更新角色失败')
                }
                this.$message.success('更新角色成功')
                this.getUserList()
                this.setRoleDialogVisible=false
            },
            // 监听分配角色对话框的关闭事件
            setRoleDialogClosed(){
                this.selectedRoleId=''
                this.userInfo=''
            }

        }

    }
</script>

<style lang="less" scoped>

</style>